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METHODS AND SYSTEMS FOR DETECTING AND QUANTIFYING A TARGET ANALYTE IN A SAMPLE BY NEGATIVE ION MODE MASS SPECTROMETRY
METHODS AND SYSTEMS FOR DETECTING AND QUANTIFYING A TARGET ANALYTE IN A SAMPLE BY NEGATIVE ION MODE MASS SPECTROMETRY
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机译：通过负离子模式质谱法检测和定量样品中靶分析物的方法和系统
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摘要
Laser diode thermal desorption coupled with tandem mass spectrometry systems and methods are described to detect at least one target analyte in a sample by negative ion mode mass spectrometry. For instance, the system and method involve desorbing a sample prepared for mass spectrometry analysis by laser diode thermal desorption to obtain a desorbed sample, and then ionizing the desorbed sample under conditions to generate an ionized analyte flow comprising a superoxide radical anion (O2•-) adduct detectable by negative ion mode mass spectrometry; and then detecting the O2•- adduct by negative ion mode mass spectrometry, to thereby detect the target analyte.
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